HDFS-13544. Improve logging for JournalNode in federated cluster.
This commit is contained in:
Hanisha Koneru
parent
6653f4ba2e
commit
6beb25ab7e
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@ -208,11 +208,12 @@ public class Journal implements Closeable {
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while (!files.isEmpty()) {
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EditLogFile latestLog = files.remove(files.size() - 1);
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latestLog.scanLog(Long.MAX_VALUE, false);
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LOG.info("Latest log is " + latestLog);
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LOG.info("Latest log is " + latestLog + " ; journal id: " + journalId);
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if (latestLog.getLastTxId() == HdfsServerConstants.INVALID_TXID) {
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// the log contains no transactions
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LOG.warn("Latest log " + latestLog + " has no transactions. " +
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"moving it aside and looking for previous log");
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"moving it aside and looking for previous log"
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+ " ; journal id: " + journalId);
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latestLog.moveAsideEmptyFile();
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} else {
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return latestLog;
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@ -230,7 +231,7 @@ public class Journal implements Closeable {
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Preconditions.checkState(nsInfo.getNamespaceID() != 0,
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"can't format with uninitialized namespace info: %s",
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nsInfo);
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LOG.info("Formatting " + this + " with namespace info: " +
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LOG.info("Formatting journal id : " + journalId + " with namespace info: " +
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nsInfo);
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storage.format(nsInfo);
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refreshCachedData();
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@ -323,7 +324,7 @@ public class Journal implements Closeable {
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// any other that we've promised.
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if (epoch <= getLastPromisedEpoch()) {
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throw new IOException("Proposed epoch " + epoch + " <= last promise " +
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getLastPromisedEpoch());
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getLastPromisedEpoch() + " ; journal id: " + journalId);
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}
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updateLastPromisedEpoch(epoch);
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@ -343,7 +344,8 @@ public class Journal implements Closeable {
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private void updateLastPromisedEpoch(long newEpoch) throws IOException {
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LOG.info("Updating lastPromisedEpoch from " + lastPromisedEpoch.get() +
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" to " + newEpoch + " for client " + Server.getRemoteIp());
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" to " + newEpoch + " for client " + Server.getRemoteIp() +
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" ; journal id: " + journalId);
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lastPromisedEpoch.set(newEpoch);
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// Since we have a new writer, reset the IPC serial - it will start
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@ -378,7 +380,7 @@ public class Journal implements Closeable {
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}
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checkSync(curSegment != null,
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"Can't write, no segment open");
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"Can't write, no segment open" + " ; journal id: " + journalId);
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if (curSegmentTxId != segmentTxId) {
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// Sanity check: it is possible that the writer will fail IPCs
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@ -389,17 +391,20 @@ public class Journal implements Closeable {
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// and throw an exception.
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JournalOutOfSyncException e = new JournalOutOfSyncException(
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"Writer out of sync: it thinks it is writing segment " + segmentTxId
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+ " but current segment is " + curSegmentTxId);
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+ " but current segment is " + curSegmentTxId
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+ " ; journal id: " + journalId);
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abortCurSegment();
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throw e;
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}
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checkSync(nextTxId == firstTxnId,
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"Can't write txid " + firstTxnId + " expecting nextTxId=" + nextTxId);
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"Can't write txid " + firstTxnId + " expecting nextTxId=" + nextTxId
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+ " ; journal id: " + journalId);
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long lastTxnId = firstTxnId + numTxns - 1;
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if (LOG.isTraceEnabled()) {
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LOG.trace("Writing txid " + firstTxnId + "-" + lastTxnId);
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LOG.trace("Writing txid " + firstTxnId + "-" + lastTxnId +
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" ; journal id: " + journalId);
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}
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// If the edit has already been marked as committed, we know
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@ -423,7 +428,7 @@ public class Journal implements Closeable {
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if (milliSeconds > WARN_SYNC_MILLIS_THRESHOLD) {
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LOG.warn("Sync of transaction range " + firstTxnId + "-" + lastTxnId +
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" took " + milliSeconds + "ms");
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" took " + milliSeconds + "ms" + " ; journal id: " + journalId);
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}
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if (isLagging) {
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@ -455,7 +460,7 @@ public class Journal implements Closeable {
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if (reqInfo.getEpoch() < lastPromisedEpoch.get()) {
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throw new IOException("IPC's epoch " + reqInfo.getEpoch() +
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" is less than the last promised epoch " +
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lastPromisedEpoch.get());
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lastPromisedEpoch.get() + " ; journal id: " + journalId);
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} else if (reqInfo.getEpoch() > lastPromisedEpoch.get()) {
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// A newer client has arrived. Fence any previous writers by updating
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// the promise.
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@ -465,16 +470,16 @@ public class Journal implements Closeable {
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// Ensure that the IPCs are arriving in-order as expected.
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checkSync(reqInfo.getIpcSerialNumber() > currentEpochIpcSerial,
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"IPC serial %s from client %s was not higher than prior highest " +
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"IPC serial %s", reqInfo.getIpcSerialNumber(),
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Server.getRemoteIp(),
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currentEpochIpcSerial);
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"IPC serial %s ; journal id: %s", reqInfo.getIpcSerialNumber(),
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Server.getRemoteIp(), currentEpochIpcSerial, journalId);
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currentEpochIpcSerial = reqInfo.getIpcSerialNumber();
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if (reqInfo.hasCommittedTxId()) {
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Preconditions.checkArgument(
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reqInfo.getCommittedTxId() >= committedTxnId.get(),
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"Client trying to move committed txid backward from " +
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committedTxnId.get() + " to " + reqInfo.getCommittedTxId());
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committedTxnId.get() + " to " + reqInfo.getCommittedTxId() +
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" ; journal id: " + journalId);
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committedTxnId.set(reqInfo.getCommittedTxId());
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}
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@ -486,7 +491,7 @@ public class Journal implements Closeable {
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if (reqInfo.getEpoch() != lastWriterEpoch.get()) {
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throw new IOException("IPC's epoch " + reqInfo.getEpoch() +
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" is not the current writer epoch " +
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lastWriterEpoch.get());
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lastWriterEpoch.get() + " ; journal id: " + journalId);
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}
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}
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@ -497,7 +502,8 @@ public class Journal implements Closeable {
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private void checkFormatted() throws JournalNotFormattedException {
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if (!isFormatted()) {
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throw new JournalNotFormattedException("Journal " +
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storage.getSingularStorageDir() + " not formatted");
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storage.getSingularStorageDir() + " not formatted" +
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" ; journal id: " + journalId);
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}
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}
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@ -542,7 +548,8 @@ public class Journal implements Closeable {
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if (curSegment != null) {
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LOG.warn("Client is requesting a new log segment " + txid +
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" though we are already writing " + curSegment + ". " +
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"Aborting the current segment in order to begin the new one.");
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"Aborting the current segment in order to begin the new one." +
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" ; journal id: " + journalId);
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// The writer may have lost a connection to us and is now
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// re-connecting after the connection came back.
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// We should abort our own old segment.
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@ -556,7 +563,7 @@ public class Journal implements Closeable {
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if (existing != null) {
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if (!existing.isInProgress()) {
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throw new IllegalStateException("Already have a finalized segment " +
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existing + " beginning at " + txid);
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existing + " beginning at " + txid + " ; journal id: " + journalId);
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}
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// If it's in-progress, it should only contain one transaction,
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@ -565,7 +572,8 @@ public class Journal implements Closeable {
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existing.scanLog(Long.MAX_VALUE, false);
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if (existing.getLastTxId() != existing.getFirstTxId()) {
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throw new IllegalStateException("The log file " +
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existing + " seems to contain valid transactions");
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existing + " seems to contain valid transactions" +
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" ; journal id: " + journalId);
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}
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}
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@ -573,7 +581,7 @@ public class Journal implements Closeable {
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if (curLastWriterEpoch != reqInfo.getEpoch()) {
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LOG.info("Updating lastWriterEpoch from " + curLastWriterEpoch +
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" to " + reqInfo.getEpoch() + " for client " +
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Server.getRemoteIp());
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Server.getRemoteIp() + " ; journal id: " + journalId);
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lastWriterEpoch.set(reqInfo.getEpoch());
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}
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@ -608,8 +616,8 @@ public class Journal implements Closeable {
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checkSync(nextTxId == endTxId + 1,
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"Trying to finalize in-progress log segment %s to end at " +
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"txid %s but only written up to txid %s",
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startTxId, endTxId, nextTxId - 1);
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"txid %s but only written up to txid %s ; journal id: %s",
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startTxId, endTxId, nextTxId - 1, journalId);
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// No need to validate the edit log if the client is finalizing
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// the log segment that it was just writing to.
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needsValidation = false;
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@ -618,25 +626,27 @@ public class Journal implements Closeable {
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FileJournalManager.EditLogFile elf = fjm.getLogFile(startTxId);
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if (elf == null) {
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throw new JournalOutOfSyncException("No log file to finalize at " +
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"transaction ID " + startTxId);
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"transaction ID " + startTxId + " ; journal id: " + journalId);
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}
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if (elf.isInProgress()) {
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if (needsValidation) {
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LOG.info("Validating log segment " + elf.getFile() + " about to be " +
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"finalized");
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"finalized ; journal id: " + journalId);
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elf.scanLog(Long.MAX_VALUE, false);
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checkSync(elf.getLastTxId() == endTxId,
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"Trying to finalize in-progress log segment %s to end at " +
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"txid %s but log %s on disk only contains up to txid %s",
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startTxId, endTxId, elf.getFile(), elf.getLastTxId());
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"txid %s but log %s on disk only contains up to txid %s " +
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"; journal id: %s",
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startTxId, endTxId, elf.getFile(), elf.getLastTxId(), journalId);
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}
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fjm.finalizeLogSegment(startTxId, endTxId);
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} else {
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Preconditions.checkArgument(endTxId == elf.getLastTxId(),
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"Trying to re-finalize already finalized log " +
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elf + " with different endTxId " + endTxId);
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elf + " with different endTxId " + endTxId +
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" ; journal id: " + journalId);
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}
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// Once logs are finalized, a different length will never be decided.
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@ -667,7 +677,8 @@ public class Journal implements Closeable {
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File paxosFile = storage.getPaxosFile(segmentTxId);
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if (paxosFile.exists()) {
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if (!paxosFile.delete()) {
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throw new IOException("Unable to delete paxos file " + paxosFile);
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throw new IOException("Unable to delete paxos file " + paxosFile +
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" ; journal id: " + journalId);
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}
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}
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}
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@ -717,7 +728,7 @@ public class Journal implements Closeable {
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}
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if (elf.getLastTxId() == HdfsServerConstants.INVALID_TXID) {
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LOG.info("Edit log file " + elf + " appears to be empty. " +
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"Moving it aside...");
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"Moving it aside..." + " ; journal id: " + journalId);
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elf.moveAsideEmptyFile();
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return null;
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}
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@ -727,7 +738,7 @@ public class Journal implements Closeable {
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.setIsInProgress(elf.isInProgress())
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.build();
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LOG.info("getSegmentInfo(" + segmentTxId + "): " + elf + " -> " +
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TextFormat.shortDebugString(ret));
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TextFormat.shortDebugString(ret) + " ; journal id: " + journalId);
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return ret;
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}
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@ -771,7 +782,7 @@ public class Journal implements Closeable {
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PrepareRecoveryResponseProto resp = builder.build();
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LOG.info("Prepared recovery for segment " + segmentTxId + ": " +
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TextFormat.shortDebugString(resp));
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TextFormat.shortDebugString(resp) + " ; journal id: " + journalId);
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return resp;
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}
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@ -792,8 +803,8 @@ public class Journal implements Closeable {
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// at least one transaction.
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Preconditions.checkArgument(segment.getEndTxId() > 0 &&
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segment.getEndTxId() >= segmentTxId,
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"bad recovery state for segment %s: %s",
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segmentTxId, TextFormat.shortDebugString(segment));
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"bad recovery state for segment %s: %s ; journal id: %s",
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segmentTxId, TextFormat.shortDebugString(segment), journalId);
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PersistedRecoveryPaxosData oldData = getPersistedPaxosData(segmentTxId);
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PersistedRecoveryPaxosData newData = PersistedRecoveryPaxosData.newBuilder()
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@ -806,8 +817,9 @@ public class Journal implements Closeable {
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// checkRequest() call above should filter non-increasing epoch numbers.
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if (oldData != null) {
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alwaysAssert(oldData.getAcceptedInEpoch() <= reqInfo.getEpoch(),
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"Bad paxos transition, out-of-order epochs.\nOld: %s\nNew: %s\n",
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oldData, newData);
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"Bad paxos transition, out-of-order epochs.\nOld: %s\nNew: " +
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"%s\nJournalId: %s\n",
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oldData, newData, journalId);
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}
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File syncedFile = null;
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@ -817,7 +829,7 @@ public class Journal implements Closeable {
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currentSegment.getEndTxId() != segment.getEndTxId()) {
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if (currentSegment == null) {
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LOG.info("Synchronizing log " + TextFormat.shortDebugString(segment) +
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": no current segment in place");
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": no current segment in place ; journal id: " + journalId);
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// Update the highest txid for lag metrics
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updateHighestWrittenTxId(Math.max(segment.getEndTxId(),
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@ -825,7 +837,7 @@ public class Journal implements Closeable {
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} else {
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LOG.info("Synchronizing log " + TextFormat.shortDebugString(segment) +
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": old segment " + TextFormat.shortDebugString(currentSegment) +
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" is not the right length");
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" is not the right length ; journal id: " + journalId);
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// Paranoid sanity check: if the new log is shorter than the log we
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// currently have, we should not end up discarding any transactions
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@ -838,14 +850,15 @@ public class Journal implements Closeable {
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" with new segment " +
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TextFormat.shortDebugString(segment) +
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": would discard already-committed txn " +
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committedTxnId.get());
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committedTxnId.get() +
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" ; journal id: " + journalId);
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}
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// Another paranoid check: we should not be asked to synchronize a log
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// on top of a finalized segment.
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alwaysAssert(currentSegment.getIsInProgress(),
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"Should never be asked to synchronize a different log on top of an " +
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"already-finalized segment");
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"Should never be asked to synchronize a different log on top of " +
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"an already-finalized segment ; journal id: " + journalId);
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// If we're shortening the log, update our highest txid
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// used for lag metrics.
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@ -858,7 +871,7 @@ public class Journal implements Closeable {
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} else {
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LOG.info("Skipping download of log " +
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TextFormat.shortDebugString(segment) +
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": already have up-to-date logs");
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": already have up-to-date logs ; journal id: " + journalId);
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}
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// This is one of the few places in the protocol where we have a single
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@ -890,12 +903,12 @@ public class Journal implements Closeable {
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}
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LOG.info("Accepted recovery for segment " + segmentTxId + ": " +
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TextFormat.shortDebugString(newData));
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TextFormat.shortDebugString(newData) + " ; journal id: " + journalId);
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}
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private LongRange txnRange(SegmentStateProto seg) {
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Preconditions.checkArgument(seg.hasEndTxId(),
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"invalid segment: %s", seg);
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"invalid segment: %s ; journal id: %s", seg, journalId);
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return new LongRange(seg.getStartTxId(), seg.getEndTxId());
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}
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@ -970,7 +983,7 @@ public class Journal implements Closeable {
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if (tmp.exists()) {
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File dst = storage.getInProgressEditLog(segmentId);
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LOG.info("Rolling forward previously half-completed synchronization: " +
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tmp + " -> " + dst);
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tmp + " -> " + dst + " ; journal id: " + journalId);
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FileUtil.replaceFile(tmp, dst);
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}
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}
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@ -991,8 +1004,8 @@ public class Journal implements Closeable {
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PersistedRecoveryPaxosData ret = PersistedRecoveryPaxosData.parseDelimitedFrom(in);
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Preconditions.checkState(ret != null &&
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ret.getSegmentState().getStartTxId() == segmentTxId,
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"Bad persisted data for segment %s: %s",
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segmentTxId, ret);
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"Bad persisted data for segment %s: %s ; journal id: %s",
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segmentTxId, ret, journalId);
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return ret;
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} finally {
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IOUtils.closeStream(in);
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@ -1041,7 +1054,7 @@ public class Journal implements Closeable {
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storage.cTime = sInfo.cTime;
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int oldLV = storage.getLayoutVersion();
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storage.layoutVersion = sInfo.layoutVersion;
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LOG.info("Starting upgrade of edits directory: "
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LOG.info("Starting upgrade of edits directory: " + storage.getRoot()
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+ ".\n old LV = " + oldLV
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+ "; old CTime = " + oldCTime
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+ ".\n new LV = " + storage.getLayoutVersion()
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@ -1112,7 +1125,7 @@ public class Journal implements Closeable {
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if (endTxId <= committedTxnId.get()) {
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if (!finalFile.getParentFile().exists()) {
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LOG.error(finalFile.getParentFile() + " doesn't exist. Aborting tmp " +
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"segment move to current directory");
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"segment move to current directory ; journal id: " + journalId);
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return false;
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}
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Files.move(tmpFile.toPath(), finalFile.toPath(),
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@ -1122,13 +1135,13 @@ public class Journal implements Closeable {
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} else {
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success = false;
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LOG.warn("Unable to move edits file from " + tmpFile + " to " +
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finalFile);
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finalFile + " ; journal id: " + journalId);
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}
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} else {
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success = false;
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LOG.error("The endTxId of the temporary file is not less than the " +
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"last committed transaction id. Aborting move to final file" +
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finalFile);
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finalFile + " ; journal id: " + journalId);
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}
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return success;
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